TY  - RPRT
TI  - Biotransformation of caffeine, cotinine, and nicotine in stream sediments: Implications for use as wastewater indicators
AU  - Paul M. Bradley
AU  - Larry B. Barber
AU  - Dana W. Kolpin
AU  - Peter B. McMahon
AU  - Francis H. Chapelle
PY  - 2007
DO  - 10.1897/06-483r.1
UR  - https://pubs.usgs.gov/publication/70029938
ID  - 70029938
ER  -